Definition:(noun) the lowest tone of a harmonic series(adjective satellite) serving as an essential component; "a cardinal rule"; "the central cause of the problem"; "an example that was ####### to the argument"; "computers are ####### to modern industrial structure" (adjective satellite) being or involving basic facts or principles; "the ####### laws of the universe"; "a ####### incompatibility between them"; "these rudimentary truths"; "underlying principles" (adjective satellite) far-reaching and thoroughgoing in effect especially on the nature of something; "the ####### revolution in human values that has occurred"; "the book underwent ####### changes"; "committed the ####### error of confusing spending with extravaga
| ** Please Select the best Word that fits the definition in the left column |